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x86: use symbolic name for VM86_SIGNAL when used as vm86 default return
This code has apparently used "0" and not VM86_SIGNAL since Linux 1.1.9, when Linus added VM86_SIGNAL to vm86.h. This patch changes the code to use the symbolic name. The magic 0 tripped me up in trying to extend the vm86(2) manpage to actually explain vm86()'s interface -- my greps for VM86_SIGNAL came up fruitless. [ Impact: cleanup; no object code change ] Signed-off-by: Samuel Bronson <naesten@gmail.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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1 changed files with 2 additions and 2 deletions
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@ -318,9 +318,9 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
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}
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/*
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* Save old state, set default return value (%ax) to 0
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* Save old state, set default return value (%ax) to 0 (VM86_SIGNAL)
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*/
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info->regs32->ax = 0;
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info->regs32->ax = VM86_SIGNAL;
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tsk->thread.saved_sp0 = tsk->thread.sp0;
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tsk->thread.saved_fs = info->regs32->fs;
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tsk->thread.saved_gs = get_user_gs(info->regs32);
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